Commit Graph

61 Commits

Author SHA1 Message Date
Nguyễn Thái Ngọc Duy
754980d023 pack-objects, streaming: turn "xx >= big_file_threshold" to ".. > .."
This is because all other places do "xx > big_file_threshold"

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-18 14:21:19 -07:00
René Scharfe
6163cd8a2a streaming: void pointer instead of char pointer
Allow any kind of buffer to be fed to read_istream() without an explicit
cast by making it's buf argument a void pointer.  It's about arbitrary
data, not only characters.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-03 10:22:56 -07:00
Junio C Hamano
47a02ff2ca streaming: make streaming-write-entry to be more reusable
The static function in entry.c takes a cache entry and streams its blob
contents to a file in the working tree.  Refactor the logic to a new API
function stream_blob_to_fd() that takes an object name and an open file
descriptor, so that it can be reused by other callers.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-07 09:07:37 -08:00
Junio C Hamano
b04f826bf6 Merge branch 'jc/streaming-filter'
* jc/streaming-filter:
  streaming: free git_istream upon closing
2011-08-01 15:00:29 -07:00
Jeff King
95dea6eb50 streaming: free git_istream upon closing
Kirill Smelkov noticed that post-1.7.6 "git checkout"
started leaking tons of memory. The streaming_write_entry
function properly calls close_istream(), but that function
did not actually free() the allocated git_istream struct.

The git_istream struct is totally opaque to calling code,
and must be heap-allocated by open_istream. Therefore it's
not appropriate for callers to have to free it.

This patch makes close_istream() into "close and de-allocate
all associated resources". We could add a new "free_istream"
call, but there's not much point in letting callers inspect
the istream after close. And this patch's semantics make us
match fopen/fclose, which is well-known and understood.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-22 14:30:49 -07:00
Junio C Hamano
eb4f4076aa Merge branch 'jc/zlib-wrap'
* jc/zlib-wrap:
  zlib: allow feeding more than 4GB in one go
  zlib: zlib can only process 4GB at a time
  zlib: wrap deflateBound() too
  zlib: wrap deflate side of the API
  zlib: wrap inflateInit2 used to accept only for gzip format
  zlib: wrap remaining calls to direct inflate/inflateEnd
  zlib wrapper: refactor error message formatter

Conflicts:
	sha1_file.c
2011-07-19 09:33:04 -07:00
Junio C Hamano
4ae6670444 stream filter: add "no more input" to the filters
Some filters may need to buffer the input and look-ahead inside it
to decide what to output, and they may consume more than zero bytes
of input and still not produce any output. After feeding all the
input, pass NULL as input as keep calling stream_filter() to let
such filters know there is no more input coming, and it is time for
them to produce the remaining output based on the buffered input.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-26 16:47:15 -07:00
Junio C Hamano
b6691092d7 Add streaming filter API
This introduces an API to plug custom filters to an input stream.

The caller gets get_stream_filter("path") to obtain an appropriate
filter for the path, and then uses it when opening an input stream
via open_istream().  After that, the caller can read from the stream
with read_istream(), and close it with close_istream(), just like an
unfiltered stream.

This only adds a "null" filter that is a pass-thru filter, but later
changes can add LF-to-CRLF and other filters, and the callers of the
streaming API do not have to change.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-26 16:47:15 -07:00
Junio C Hamano
93aa7bd595 streaming: read loose objects incrementally
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-20 23:16:53 -07:00
Junio C Hamano
7ef2d9a260 streaming: read non-delta incrementally from a pack
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-20 23:16:53 -07:00
Junio C Hamano
46bf043807 streaming: a new API to read from the object store
Given an object name, use open_istream() to get a git_istream handle
that you can read_istream() from as if you are using read(2) to read
the contents of the object, and close it with close_istream() when
you are done.

Currently, we do not do anything fancy--it just calls read_sha1_file()
and keeps the contents in memory as a whole, and carve it out as you
request with read_istream().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-20 18:46:55 -07:00